Alabama Crimson Tide head coach Nick Saban, here in the victory parade following last month's national title, now has to deal with the arrests of four players. / Marvin Gentry, USA TODAY Sports

by Dan Wolken, USA TODAY Sports

by Dan Wolken, USA TODAY Sports

Four Alabama football players have been indefinitely suspended from the team after their arrests Monday.

Three players - safety Eddie Williams, linebacker Tyler Hayes and defensive end D.J. Pettway - have been charged with two counts of second degree robbery.

They are accused of robbing two students in separate incidents on campus, rendering one of them unconscious, then using a stolen university debit card to buy snacks from a dormitory vending machine, according to arrest reports filed with the Tuscaloosa County District Court.

A fourth, H-back Brent Calloway, was charged with fraudulent use of a credit card and was apparently not part of the robbery.

Alabama coach Nick Saban announced the discipline for the four players.

"The young men charged are indefinitely suspended as we continue to gather information and talk to the appropriate people," Saban said in a statement released by the school. "The University and football program have strict guidelines regarding issues of this magnitude. This behavior is unacceptable for any student-athlete at the University of Alabama and not representative of our football program."

Hayes, Pettway and Calloway played as freshmen for Alabama's 2012 national championship team, albeit in minor roles. Williams, a freshman, sat out as a redshirt.

According to a deposition given by one of the victims, Pettway, Hayes and Williams physically attacked him just after midnight with punches to the head and face while being kicked in the back and ribs by the players, who stole his backpack and laptop. The victim suffered a mild concussion with facial lacerations.

According to the arrest warrant, Williams admitted to physically attacking the other victim and stealing his wallet while Pettway and Hayes watched in a nearby vehicle.

It was the second arrest in two days for Williams, who was placed in Tuscaloosa County Jail on Sunday for carrying a pistol without a license following a disturbance at a gas station. He was later released on $500 bond.

Calloway, a five-star recruit, also was arrested in 2011 by Tuscaloosa police on second-degree possession of marijuana. At the time, Alabama assistant athletic director Jeff Purinton told al.com that any punishment would be handled internally.